<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
	<title> Tree </title>
	<style type="text/css" >
	</style>
</head>
<body>
<div class="tree">
 <div class="branch">
  <div class="name"> root </div>
  <div class="leaves">
   <div class="branch">
    <div class="name"> leaf_1 </div>
   </div>
   <div class="branch">
    <div class="name"> leaf_2 </div>
    <div class="leaves">
     <div class="branch">
      <div class="name"> leaf_21 </div>
     </div>
     <div class="branch">
      <div class="name"> leaf_22 </div>
      <div class="leaves">
       <div class="branch">
        <div class="name"> leaf_221 </div>
       </div>
      </div>
     </div>
    </div>
   </div>
  </div>
 </div>
</div>
</body>
</html>
